Best, non-stretchy grab line material? - Mountain Buzz
 



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Old 08-17-2017   #1
 
Coeur d'Alene, Idaho
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Best, non-stretchy grab line material?

I just made one out of some old 1/2" tubular web I had laying around. It fits tight as a drum when its dry, but when it gets wet, it has about a foot or more of stretch in it. Any recommendations?

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Old 08-17-2017   #2
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I keep inexpensive 3/8" rope as a perimeter line. It doesn't stretch much, and I don't care if I have to cut it. I've seen rafts get hung up by their perimeter line upside down, and we had to cut the line to remove it. All I want it for is a grab handle, and it does that one job. I tie mine at the D rings too, that helps with the stretch of the line. I've been thinking about going to strap material, but I think the round rope is easier to grab in a shit storm, especially in the cold with the gloves I wear. I might have to look to see the line as I doubt I'd feel a 1 inch wide strap against a tube.
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Old 08-17-2017   #3
 
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Good tubular webbing shouldn't stretch at all, wet or dry. I would first look at how much slack you have pulling from around the rest of the raft. If you want to go the rope route, look for static climbing line, not dynamic. It's more expensive, but doesn't stretch. If you know anyone who climbs, ask if they have a retired rope you could have a length of, or check with the closest climbing shop for one.
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Old 08-18-2017   #4
 
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I am with Learch, I use water ski rope. It does not stretch at all. I make an eye in one end by inserting it into its' self, go around the boat and tie through the eye. Works great and if you have to cut it, oh well.

You probably have a piece of polypro webbing. It stretches bad when wet.
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Old 08-18-2017   #5
 
SW, Colorado
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Quote:
Originally Posted by Smoregon View Post
Good tubular webbing shouldn't stretch at all, wet or dry. I would first look at how much slack you have pulling from around the rest of the raft. If you want to go the rope route, look for static climbing line, not dynamic. It's more expensive, but doesn't stretch. If you know anyone who climbs, ask if they have a retired rope you could have a length of, or check with the closest climbing shop for one.
Tubular climbing-spec or MIL-spec webbing will stretch when wet because it is most often made of nylon. Nylon absorbs water and stretches when wet. It is one of the reasons that price point sails are made of poly and why tent flies are made of poly. It is also why modern slackline webbing is not nylon.

You will want PE or PP based rope or webbing for this application.
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Old 08-18-2017   #6
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We Like 4000lb polyester flat webbing. Setting it up like a giant loop strap makes adjusting the tension fast and easy. This is the same material we use for our straps.
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Old 08-19-2017   #7
 
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+1 Durangatan
Nylon webbing does have significant stretch when wet. Polyester typically does not. This also gives nylon a little more opportunity to mildew.
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Old 08-20-2017   #8
 
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Quote:
Originally Posted by Whitewater Worthy Equip View Post
We Like 4000lb polyester flat webbing. Setting it up like a giant loop strap makes adjusting the tension fast and easy. This is the same material we use for our straps.
+1. This is also what I use. Short loop strap/cam buckle piece, loop strap end on the other long piece. Works great. No need to fiddle with knots. Easy to adjust and remove. I got mine from strapworks.com. Flat polyester webbing.
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